Malicious PDF — malware analysis report

Static analysis result for SHA-256 f95e7019d7588692…

MALICIOUS

PDF

76.3 KB Created: 2021-02-28 15:09:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: c0cf6c5229d53572005136695abf1b77 SHA-1: ddc8d3958233cb4521af3f09d798ab385cbaaa5f SHA-256: f95e7019d75886922a361333125b7de094008335ef21db341583a30b0695d1c2
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URI pointing to a suspicious domain, identified as a phishing or malware distribution lure. ClamAV detection and ML classification strongly indicate malicious intent. While no scripts were directly extracted, the presence of external URIs suggests the document is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://gimoguvi.ru/award?keyword=boy+scout+chess+merit+badge+worksheet PDF link annotation
    • http://aycotoro5.xyz/puzowovenesks85.pdfIn PDF document text
    • http://spain50off.info/guideline_thalassemia_thailand4z4cs.pdfIn PDF document text
    • https://cdn.sqhk.co/litopozuf/jdl9Jjh/redream_emulator_bios.pdfIn PDF document text
    • http://antileqphh.site/how_to_restart_routeruvgsk.pdfIn PDF document text
    • https://cdn.sqhk.co/gawagunikuw/igggjgy/92204254825.pdfIn PDF document text
    • http://pipvip.ru/sword_coast_adventurers_guide_tiefling0snx9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/circus_vector_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/bekhayali_kabir_singh_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/af_somali_form_four.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/american_english_learning_app_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/kamasuriwerebulukubuf.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/zajovuxa.pdfIn PDF document text
    • https://s3.amazonaws.com/rizijubovapuk/xanaturabilazimobozevu.pdfIn PDF document text
    • https://s3.amazonaws.com/mekonulegipero/analogy_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/vce_to_converter_online_tool_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pubopelej/xuvevejikoxubi.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/nuxajebajawozigoban.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED40 5768 bytes
SHA-256: 5d545ed7bfb6d34a445ffd3fa7bb354a62a54e5db29e64ef49862a3ba1641d69
font_01_sfnt_off000100d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100D8 10396 bytes
SHA-256: e182c68f259469893520cf64bae643c1853a7bb6ae60864b262254c9b608d1f0

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